Digital Sensors

Slope Stability Radar

Digital 3D Rock Stress

The Digital Hollow Inclusion (HID) Cell is a very low power, high-precision instrument purposely designed for in-situ monitoring of rock stress. The unit is designed to be permanently fixed within a borehole, and provides an immediate indication of strain and temperature.

The analogue HI Cell was originally developed by the CSIRO and commercialised by a company acquired by ESS Earth Sciences, and we have in turn improved on the design by digitising the strain at the gauges rather than at the end of long, expensive multi-strand cables, where the signal can be degraded and requires special readouts or loggers. We’ve simplified the sensor to provide a serial output to a logger, computer or tablet.

We also produce a data logger that can acquire data in real time from up to four HID Cells, which is simply saved to a CSV file on a USB stick – ideal for long term in-situ monitoring. This data can be processed with the latest “Stress” software. Alternatively an HID cell can be powered by a breakout box and connected to a tablet via USB to plot data in real time – ideal for overcoring applications.

Our HI and HID cells are the original product and are of the highest quality, and our ongoing development and improvement of the cell and related hardware and software means we are the best one-stop-shop for 3D in-situ stress measurement systems.

Digital Sensors

The Geosystems Digital Extensometer is a multi-point borehole extensometer (MPBX) that can have 1 to 6 anchor points. It combines a traditional multi-rod design, modern materials, and digital signal processing to dramatically improve the accuracy and reliability compared to similarly priced alternatives. This high precision digital extensometer comprises up to six variable induction displacement sensors. The hermetically sealed electronics operate indefinitely when submerged in water.

The on-board micro-processer performs digital signal processing and transmits readings directly in real world units (mm and °C). The output can be read by our low cost readout unit, tablet, or data logger; and can be wirelessly networked for transmission to Cloud based servers.

Slope Stability Radar

We have taken the revolutionary, high performance Metasensing FastGBSAR (Fast Ground Based Synthetic Aperture Radar) to the next level by adding portability and power. This state of the art machine, designed to monitor pit wall stability in real time and provide early warnings of potential failure, is now fully mobile and self-contained.

The Geosystems Slope Monitoring Radar is a fully integrated turnkey mobile system that is easily transportable and deployed in minutes. The system can be transported using a light vehicle, making it convenient for rapid installations and regular movement around the pit. It can be used for more permanent deployments over critical production areas, or for background observations of overall pit wall stability. The vehicle mounted system features a sophisticated on-board power arrangement to run the radar autonomously around the clock. Geosystems has developed several trailer designs to suit each type of surface mining method, environment and challenging Australian conditions. Our goal was to apply innovative solutions to mobilise the system without negatively impacting on the radar’s astonishing performance. Geosystems has achieved that goal using our in-house electrical and mechanical engineering expertise, enabling us to provide custom solutions and timely local support. Please feel free to contact us to discuss how our unique solutions may benefit you.

Geosystems

a division of ESS Earth Sciences

www.essearth.com

About Us

Geosystems is the specialised geotechnical instrumentation and service division of ESS Earth Sciences. With over 30 years experience in the industry, Geosystems now embodies the high tech approach to geotechnical monitoring systems, including our unique digital hollow inclusion 3-dimensional rock stress monitoring cell (HID cell), digital extensometers and loggers, and the enhancement of latest technology in slope monitoring using fast scanning ground based SAR for portable and permanent applications.